Peter B. Silverman

CIK: 0001790314

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)4 (21.1%)

Position reduction

Option Exercises (M)4 (21.1%)

Derivative conversions

Awards (A)3 (15.8%)

Compensation grants

Other (G, F, J, C, D, …)8 (42.1%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (3)

YARW

Yarrow Bioscience, Inc.

Director

LONA

LeonaBio, Inc.

Director

MRUS

Merus N.V.

Officer

Discretionary Trading P&L

Holdings

Transaction History (19 total)

LONA
LeonaBio, Inc.
Jun 23, 2026
Award(A)
Stock Option (Right to Buy)
Direct
2.3K shares-
LONA
LeonaBio, Inc.
May 5, 2026
Award(A)
Stock Option (Right to Buy)
Direct
56K shares-
MRUS
Merus N.V.
Dec 12, 2025
Disposition(D)
Share Option (right to buy)
Direct
83K shares-
MRUS
Merus N.V.
Dec 12, 2025
Disposition(D)
Share Option (right to buy)
Direct
125K shares-
MRUS
Merus N.V.
Dec 12, 2025
Disposition(D)
Share Option (right to buy)
Direct
107.3K shares-
MRUS
Merus N.V.
Dec 12, 2025
Disposition(D)
Share Option (right to buy)
Direct
3.9K shares-
MRUS
Merus N.V.
Dec 12, 2025
Disposition(D)
Share Option (right to buy)
Direct
12.7K shares-
MRUS
Merus N.V.
Dec 12, 2025
Disposition(D)
Share Option (right to buy)
Direct
104K shares-
MRUS
Merus N.V.
Dec 12, 2025
Disposition(D)
Share Option (right to buy)
Direct
20K shares-
MRUS
Merus N.V.
Dec 12, 2025
Disposition(D)
Share Option (right to buy)
Direct
50K shares-
MRUS
Merus N.V.
Jul 17, 2025
Sale(S)
Direct
25K shares at avg. $60.00$1.5M
MRUS
Merus N.V.
Jul 17, 2025
Exercise(M)
Direct
25K shares at avg. $24.43$611K
MRUS
Merus N.V.
Jul 10, 2025
Exercise(M)
Direct
16.8K shares at avg. $18.61$313K
MRUS
Merus N.V.
Jul 10, 2025
Sale(S)
Direct
16.8K shares at avg. $55.00$924K
MRUS
Merus N.V.
Jul 9, 2025
Exercise(M)
Direct
6.7K shares at avg. $18.61$125K
MRUS
Merus N.V.
Jul 9, 2025
Sale(S)
Direct
6.7K shares at avg. $55.00$368K
MRUS
Merus N.V.
Jun 20, 2025
Exercise(M)
Direct
34K shares at avg. $18.61$633K
MRUS
Merus N.V.
Jun 20, 2025
Sale(S)
Direct
34K shares at avg. $52.76$1.8M
MRUS
Merus N.V.
Jan 29, 2025
Award(A)
Share Option (right to buy)
Direct
125K shares-

		Type	Shares	Price		Ownership
Jun 23, 2026	LONA LeonaBio, Inc.	Award(A) Stock Option (Right to Buy)	2,333	-	-	Direct
May 5, 2026	LONA LeonaBio, Inc.	Award(A) Stock Option (Right to Buy)	56,000	-	-	Direct
Dec 12, 2025	MRUS Merus N.V.	Disposition(D) Share Option (right to buy)	83,000	-	-	Direct
Dec 12, 2025	MRUS Merus N.V.	Disposition(D) Share Option (right to buy)	125,000	-	-	Direct
Dec 12, 2025	MRUS Merus N.V.	Disposition(D) Share Option (right to buy)	107,300	-	-	Direct
Dec 12, 2025	MRUS Merus N.V.	Disposition(D) Share Option (right to buy)	3,900	-	-	Direct
Dec 12, 2025	MRUS Merus N.V.	Disposition(D) Share Option (right to buy)	12,714	-	-	Direct
Dec 12, 2025	MRUS Merus N.V.	Disposition(D) Share Option (right to buy)	104,000	-	-	Direct
Dec 12, 2025	MRUS Merus N.V.	Disposition(D) Share Option (right to buy)	20,000	-	-	Direct
Dec 12, 2025	MRUS Merus N.V.	Disposition(D) Share Option (right to buy)	50,000	-	-	Direct
Jul 17, 2025	MRUS Merus N.V.	Sale(S)	25,000	$60.00	$1,500,000	Direct
Jul 17, 2025	MRUS Merus N.V.	Exercise(M)	25,000	$24.43	$610,750	Direct
Jul 10, 2025	MRUS Merus N.V.	Exercise(M)	16,805	$18.61	$312,741	Direct
Jul 10, 2025	MRUS Merus N.V.	Sale(S)	16,805	$55.00	$924,275	Direct
Jul 9, 2025	MRUS Merus N.V.	Exercise(M)	6,695	$18.61	$124,594	Direct
Jul 9, 2025	MRUS Merus N.V.	Sale(S)	6,695	$55.00	$368,225	Direct
Jun 20, 2025	MRUS Merus N.V.	Exercise(M)	34,000	$18.61	$632,740	Direct
Jun 20, 2025	MRUS Merus N.V.	Sale(S)	34,000	$52.76	$1,793,840	Direct
Jan 29, 2025	MRUS Merus N.V.	Award(A) Share Option (right to buy)	125,000	-	-	Direct

1-19 of 19 transactions

About Silverman Peter B.

Silverman Peter B. (SEC CIK 0001790314) files insider reports with the SEC as Director of Yarrow Bioscience, Inc. (YARW), Director of LeonaBio, Inc. (LONA) and COO & GC of Merus N.V. (MRUS).

Signal8 holds 9 ownership filings by Silverman Peter B. (2 Form 3, 7 Form 4), filed between Jan 31, 2025 and Jul 29, 2026. Those filings report 19 transactions, from Jan 29, 2025 to Jun 23, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Silverman Peter B.'s filings is in BOTHELL, WA.

Recent filings by Silverman Peter B.

Jun 23, 2026: Grant or award of LONA derivative securities (Form 4, code A).
May 5, 2026: Grant or award of LONA derivative securities (Form 4, code A).
Dec 12, 2025: Disposition to issuer transactions of MRUS derivative securities (8 lines, Form 4, code D).
Jul 17, 2025: Open-market sale of MRUS shares (Form 4, code S).
Jul 17, 2025: Option exercise of MRUS shares (Form 4, code M).

Other insiders filing for Yarrow Bioscience, Inc. (YARW)

Payton Lori, Chief Development Officer
Alford Rachael, Chief Operating Officer
Frey Rebecca, Chief Executive Officer
Ryder Steven, Chief Medical Officer
Zeronda Tyler, Chief Financial Officer
RTW Fund Group GP, LLC, 10% Owner

How to read Form 4 transaction codes